Here is the Word version.
xxxEND_PAGE:deq04_b574_5013_5313_087
Freeman Elementary School
Outlet Sampling and Plumbing Assessment Recommendations
o
m
(S
xxxEND_PAGE:deq04_b574_5013_5313_088
Background Information
On Friday, October 23, 2015, the Department of Licensing and Regulatory Affairs (DLARA) and
the Department of Environmental Quality (DEQ) conducted an assessment of Freeman
Elementary’s plumbing system to gain a comprehensive understanding of how water moves
through the building and what types of plumbing materials are used. The assessment identified
the following potential sources of lead leaching into drinking water:
Lead solder joints on copper piping
Brass valves and brass fittings
Brass components in fixtures
Galvanized piping
The assessment also identified 31 faucets or fountains that provide water for drinking, cooking
and/or food preparation. The team developed a sequenee for gempling the 31 faucets based on
how the water travels through the building. : :
On Saturday, October 24, 2015, the DEQ and the DEARA compictel ‘sampling of the 31
faucets/ fountains, in the order determined by:the plumbing assessment:from the previous day,
following a stagnation period of 12 hours. At each of the 31 faucets/fountains identified, staff
collected four samples. Two initial, 125-mililiter ples (P1-and P2), were.collected
immediately after turning on the tap. The water was:then flushed for 30 seconds:and a third,
125-mililiter sample (F1) was collec $ flushed for another two minutes,
and the fourth 125-mililiter sample (Fz
Water Service Information
a into galvanized metal piping for cold
water lines. Two separate galvan z pla lines exit the boiler room. One in the
northeast corner appears +t ri
north end ¢
throughout the building.
xxxEND_PAGE:deq04_b574_5013_5313_089
Qutlets With Lead Levels Greater Than 15 Parts per Billion
Outlet: Bubbler Drinking Fountain, Left (DW001)
Location: Hallway outside Janitorial Room
Results: P1=40 parts per billion, P2=6 parts per billion,
F1=4 parts per billion, F2=1 part per billion
These results suggest the highest contribution of lead may
be from the bubbler itself. This bubbler fixture is believed
to have a brass valve. The connection underneath the sink
also appears to have some brass components including
the valve at the wall.
Replacement of this bubbler tap and its connection
plumbing with lead-free materials will significantly reduce:
lead exposure at this location. If replacement is not
currently feasible, sample results indicate that flushing this tap for.3. minutes following periods of
stagnation is likely to reduce lead concentrations.and’lead exposure. =
Outlet: Sink Faucet (CF029)
Location: DHHS Health Office, west wall
Results: P1=17 parts per billion,
F1=2 parts per billion, F
These results suggest the highest contri
be from the faucet and its.connecting pl
plumbing in the cabinet
brass com
xxxEND_PAGE:deq04_b574_5013_5313_090
Outlet: Integrated faucet and bubbler fountain (CF006)
Location: Classroom 2, south wall
Results: P1=16 parts per billion, P2=3 parts per billion,
F1=1 part per billion, F2=1 part per billion
These results were collected from the faucet portion of the
fixture and suggest the highest contribution of lead may be